Data modulation system using digital signal processing

Details Data modulation system using digital signal processing Data modulation system using digital signal processing

1998-04-23

1999-12-14

Grimm, Siegfried H.

Modulators

Frequency shift keying modulator or minimum shift keying...

332101, 375272, 375303, H04L 2712

Patent

active

06002304&

ABSTRACT:
A modulation system is provided with a data analyzer detecting input of a modulated data and a modulation clock signal and latching and detecting an edge of the modulated data, in response to the modulated data and the modulation clock signal, a signal controller, responsive to an output of the data analyzer, carrying out an operation process with respect to the frequency deviation data and carrying out one of a frequency deviation amplitude control operation and a frequency deviation time control operation, a digital-to-analog converter converting an output of the signal controller into an analog signal, and a transmitting unit transmitting an output of the digital-to-analog converter.

REFERENCES:
patent: 3958191 (1976-05-01), Jones, Jr.
patent: 4757519 (1988-07-01), Collison et al.
patent: 5406584 (1995-04-01), Erisman

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